Experimental determination of the valence band offsets of ZnGeN2 and (ZnGe)0.94Ga0.12N2 with GaN
Experimental determination of the valence band offsets of ZnGeN2 and (ZnGe)0.94Ga0.12N2 with GaN
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ZnGeN2 和 (ZnGe)0.94Ga0.12N2 与 GaN 价带偏移的实验测定
DOI:
10.1088/1361-6463/abee45
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Zhao, Hongping
中科院分区:
文献类型:
--
作者:
Karim, Md Rezaul;Noesges, Brent A.;Jayatung, Benthara Hewage;Zhu, Menglin;Hwang, Jinwoo;Lambrecht, Walter R.;Brillson, Leonard J.;Kash, Kathleen;Zhao, Hongping
A predicted type-II staggered band alignment with an approximately 1.4 eV valence band offset at the ZnGeN 2/GaN heterointerface has inspired novel band-engineered III-N/ZnGeN 2 heterostructure-based device designs for applications in high performance optoelectronics. We report on the determination of the valence band offset between metalorganic chemical vapor deposition grown (ZnGe) 1− x Ga 2x N 2, for x= 0 and 0.06, and GaN using x-ray photoemission spectroscopy. The valence band of ZnGeN 2 was found to lie 1.45–1.65 eV above that of GaN. This result agrees well with the value predicted by first-principles density functional theory calculations using the local density approximation for the potential profile and quasiparticle self-consistent GW calculations of the band edge states relative to the potential. For (ZnGe) 0.94 Ga 0.12 N 2 the value was determined to be 1.29 eV,∼ 10%–20% lower than that of ZnGeN 2. The experimental determination of the large band offset between ZnGeN 2 and GaN provides promising alternative solutions to address challenges faced with pure III-nitride-based structures and devices.
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影响因子:
3.8
作者:
Md Rezaul Karim;Benthara Hewage Dinushi Jayatunga;Zixuan Feng;K. Kash;Hongping Zhao
通讯作者:
Hongping Zhao
影响因子:
3.7
作者:
Dmitry Skachkov;P. Quayle;K. Kash;W. Lambrecht
通讯作者:
W. Lambrecht
影响因子:
3.8
作者:
Benthara Hewage Dinushi Jayatunga;Md Rezaul Karim;R. Lalk;O. Ohanaka;W. Lambrecht;Hongping Zhao;K. Kash
通讯作者:
K. Kash
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
A. P. Jaroenjittichai;S. Lyu;W. Lambrecht
通讯作者:
W. Lambrecht
影响因子:
3.8
作者:
M. Tellekamp;Celeste L. Melamed;Celeste L. Melamed;A. Norman;A. Tamboli;Adele Tamboli
通讯作者:
Adele Tamboli